What is the difference between a weld-on hardtail and a full frame?

A weld-on hardtail attaches to the front section of your stock Harley-Davidson frame. A full frame is a complete, one-piece replacement that comes with a new vehicle title (MSO) for registration.

Can I install a weld-on hardtail myself?

Yes, with caveats. Weld-on hardtails are designed for installation by skilled and experienced fabricators. We strongly advise that only individuals with appropriate welding and fabrication knowledge and expertise undertake the installation. When in doubt, you can do the preparation and fitting of the hardtail yourself, and take it to a professional welder to have the finish welding completed.

Do I need a new title if I use a full replacement frame?

Yes, all of our complete sportster chopper frame options are sold with a Manufacturer's Statement of Origin (MSO), which you will use to register your new custom motorcycle with your local authorities.

Harley Davidson Sportster Motorcycle Frame Chassis

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Colony #9530-13 Rear Crash Bar Mounting Kit 1936-1957 Harley-Davidson Big Twin - Chrome Plated
$43.32

Colony #2092-12 Housing to Frame Clamp Bolt Kit 1932-1941 Harley-Davidson Servi-car - Parkerized
$28.42

Colony #2049-18 Jiffy Stand/Shift Lever/Footrest Hardware 2000-Up Harley-Davidson Softail - Chrome Plated
$24.62

Colony #2004-6 Tool Box Mounting Kit Late 1962-1964 Harley-Davidson Big Twin - CAD Plated
$20.57

Colony #9801-14 Front & Rear Support Rod Mounting Kit 1932-1973 Harley-Davidson 45's - CAD Plated
$32.23

Colony #9800-14 Front & Rear Support Rod Mounting Kit 1932-1973 Harley-Davidson 45's - Chrome Plated
$42.74

Colony #2554-34 Machine Gun Bracket and Ammo Box Mounting Kit 1940-1942 Harley-Davidson WLA
1 review $123.97

Colony #2547-1 Wire Clip Frame Bull Neck Head Tube 1945-E1947 Harley-Davidson - CAD Plated
$16.50

Colony #2545-1 Wire Clip Frame Head Tube 1947-1978 Harley-Davidson Big Twins - CAD Pated
$16.50

Colony #2484-3 Foot Clutch Lever Pin Rebuild Kit 1938-1940 Harley-Davidson Big Twins 1938-1952 45s
$13.92

Colony #2482-3 Foot Clutch Lever Pin Rebuild Kit 1941-1964 Harley-Davidson Hand Shifts
$13.92

Colony #2480-4 Shifter Rod End Bolt and Bushing Kit 1930-1936 Harley-Davidson VL - CAD Pated
$13.92

Colony #2458-8 Tool Box Mounting Kit 1935-1936 Harley-Davidson 74" Twins 1931-1934 45s & Singles - Chrome Plated
$26.57

Colony #2434-1 Spark Plug Cable Bracket 1937-1973 Harley-Davidson 45s & Sidevalves - Parkerized
$16.50

Colony #2204-8 Safety Guard Mounting Kit 1937-1947 Harley-Davidson 61"/74" 1955-1957 Panhead - Chrome Plated
$29.78

Colony #2187-11 Front Crash Bar Mounting Kit 1958-1969 Harley-Davidson FL - CAD Plated
$8.56

Colony #2186-11 Front Crash Bar Mounting Kit 1958-1969 Harley-Davidson FL - Chrome Plated
$9.31

Colony #2179-7 Windshield Mounting Allen Kit 2002-Up Harley-Davidson VRSC - Chrome Plated
$7.45

Colony #2177-8 Footrest and Gear Shifter Mounting Allen Kit 2002-Up Harley-Davidson VRSC - Chrome Plated
$10.42

Colony #2176-8 Frame Assembly Allen Kit 2002-Up Harley-Davidson VRSC - Chrome Plated
$11.90

Colony #2270-4-P Passenger Left and Right Footrest Mounting Kit Smooth 2004-Up Harley-Davidson XL - Chrome Plated
$9.68

Colony #2269-7-P Footpeg Support Bracket Mounting Kit Smooth Allen 2004-Up Harley-Davidson Sportster - Chrome Plated
$14.16

Colony #2858-6 Grease Fitting OEM #9853 90 degree Harley-Davidson - 6 pack - Parkerized
$16.34

Colony #2797-3 Starter Crank Clamp Bolt 1929-1943 Harley-Davidson 45 1926-34 Singles1932-59 Servi-car - Parkerized
$12.10

Colony #2718-11 Windshield Side Member Mount Kit 1924-1967 Harley-Davidson Sidecars - Parkerized
$49.50

Colony #2669-6 Clutch Foot Lever Mount Kit Oversized 1947-1973 Harley-Davidson Servi-car & WR
$20.35

Colony #2653-5 Jiffy Stand Leg Bracket Mounting Kit 1930-1952 Harley-Davidson 45 Solo 1930-1936 VL - Parkerized
$14.52

Colony #2630-8 Front Crash Bar Mounting Kit 1951-1954 Harley-Davidson Big Twins - Chrome Plated
$6.96

Colony #2607-3 Footboard Mounting Stud 1925-1928 Harley-Davidson OEM #2950-25 - Parkerized
$16.50

Colony #2606-3 Footboard Mounting Stud 1914-1928 Harley-Davidson OEM #2949-14 - Parkerized
$18.70

Colony #2663-7 Step Mounting Kit 1940-1946 Harley-Davidson Sidecars - Parkerized
$12.71

Colony #2479-2 Control Coil Adjusting Sleve 1928-1936 Harley-Davidson with Throttle Controlled Oilers - Parkerized
$13.92

Colony #3204-4 Switch Box Fastening Bolt Kit 1929-1931 Harley-Davidson D/DL/DLD 1930-1936 V/VL/VLD/VLE/VLH 1932-1936 R/RL/RLD - Nickle Plated
$16.35

Colony #3173-8 Footboard Mounting Kit 1982-Up Harley-Davidson FL - Zinc Plated
$15.13

Colony #3153-6 Leg Shield U-bolt Kit L1951-E1977 Harley-Davidson Big Twins 1952-Up KRTT Fairing Mount - Parkerized
1 review $25.96

Colony #3137-7 Steering Damper Upper Kit 1937-1952 Harley-Davidson 45's 1953-1957 Servi-cars - Chrome Plated
$65.99

Colony #3789-10 Summer Windshield Mounting Kit 1941-1945 Harley-Davidson - Parkerized
$26.00

Cycle Standard Forward Control Brake Lever - Chrome - Harley-Davidson OEM #42580-99
1 review $49.62

Gasbox Full Rigid Chopper Frame 1936-1999 Harley-Davidson Big Twin 5 Speed - 3" Up - Sporty Tank Mounts - Horseshoe Oil Tank
1 review $1,799.00

Gasbox Full Rigid Chopper Frame 1936-1999 Harley-Davidson Big Twin 4 Speed - 3" Up - Sporty Tank Mounts - Horseshoe Oil Tank
$1,799.00

Gasbox Full Rigid Frame 1936-1999 Harley-Davidson Big Twin 4 Speed - Sporty Tank Mounts - Horseshoe Oil Tank
1 review $1,799.00

Fiorucci Fabrications The 99P Foot Peg Set
$99.00

Gasbox Full Rigid Frame 2004-2022 Harley-Davidson Sportsters - Frisco Tank Mounts - Horseshoe Oil Tank
1 review $1,599.00

Gasbox Full Rigid Chopper Frame 2004-2022 Harley-Davidson Sportsters - 3" Up - Sporty Tank Mounts - Horseshoe Oil Tank
$1,599.00

Gasbox Full Rigid Frame 2004-2022 Harley-Davidson Sportsters - Sporty Tank Mounts - Horseshoe Oil Tank
$1,599.00

Gasbox Full Rigid Chopper Frame 1957-1985 Harley-Davidson Ironheads - 3" Up - Disc Brake rear - Frisco Tank Mounts - Horseshoe Oil Tank
$1,599.00

Gasbox Full Rigid Chopper Frame 1957-1985 Harley-Davidson Ironheads - 3" Up - Disc Brake rear - Sporty Tank Mounts - Horseshoe Oil Tank
$1,599.00

Gasbox Full Rigid Frame 1957-1985 Harley-Davidson Ironheads - Disc Brake rear - Sporty Tank Mounts - Horseshoe Oil Tank
$1,599.00

Til Death Cycles Lo-Pro XL Footpeg Clevis for 2004-2022 Sportster Models with Mid Controls
1 review $93.27

Colony #3748-1 Steering Damper Friction Washer And Windshield Mount 1924-1929 Harley-Davidson LT/QT 1930- 1967 Big Twins 1937-1957 45's/Servi-car - Parkerized
$11.00

Colony #3747-2 Steering Damper Friction Washers 1930-1948 Harley-Davidson All Models 1949-1957 45's/Servi-car
$22.00

The Cyclery Springer Fork Windshield Apron/Guard
$76.25

Colony #3724-3 Truss Rod Right Front Coupling Stud 1951-1973 Harley-Davidson Servi-car - Parkerized
$20.00

Colony #3723-3 Truss Rod Right Front Coupling 1951-1973 Harley-Davidson Servi-car - Parkerized
$20.00

Colony #3380-6 Fork Panel Mounting Kit 1949-1970 Harley-Davidson Big Twins 1952-1970 K/XL - Chrome Plated
$19.80

Colony #3725-12 Center Stand Mounting Kit 1957-1981 Harley-Davidson Sportster XL
$56.68

Gasbox Gasbox "Lorain" Full Frame 1957-1985 Harley-Davidson Ironhead Sportsters
$1,499.00

Kustom Tech Vintage Line Shifter/Brake Peg - Black & Brass
$131.68

Kustom Tech Vintage Line Shifter/Brake Peg - Auminum & Brass
$103.13

Kustom Tech Vintage Line Foot Pegs - Black & Brass
$371.20

Drag Specialties Swing Arm Bearing Kit 2000-17 Harley-Davidson Softail Models
$61.57

Drag Specialties Swing Arm Bearing Kit 1984-99 Harley-Davidson FXST/FLST
$66.82

Gasbox Full Rigid Chopper Frame 1986-2003 Harley-Davidson Sportsters - 3" Up - Frisco Tank Mounts
5 reviews $1,199.00

Martian Machine Penis Cast Aluminum Foot Pegs
$65.00

Colony #3650-1 Jiffy Stand Spring Plate 1930-1952 Harley-Davidson 45 Twins 1930-1934 Singles - Parkerized
$16.50

Klock Werks Sport Flare Windshield - 6 inch - Black - 2015-Up Harley-Davidson FLTR Models
$199.95

Colony #3636-4 Kickstand Leg Stop Kit 1936-1984 Harley-Davidson Big Twins - CAD Plated
$16.78

Colony #3632-10 Front Stand Catch Mounting Kit 1936-1948 Harley-Davidson Big Twins 1936-1957 Servi-Car 1936-1952 45's - Parkerized
$7.43

The Speed Merchant Cruiser Foot Pegs - Raw
$152.96 $169.95

The Speed Merchant Cruiser Foot Pegs - Black
$157.46 $174.95

The Speed Merchant Speedpegs Foot Pegs - Gold
1 review $157.46 $174.95

Harley Sportster Frames & Chopper Chassis The Harley-Davidson Sportster is the ultimate platform for a custom build, and the sportster frame is its backbone. Whether you're converting your stock bike with a weld-on hardtail or building a groun...

Harley Sportster Frames & Chopper Chassis

The Harley-Davidson Sportster is the ultimate platform for a custom build, and the sportster frame is its backbone. Whether you're converting your stock bike with a weld-on hardtail or building a ground-up chopper, we have the high-quality harley davidson bike frame components to create the perfect stance.

Choosing the Right Sportster Frame for Your Build

The frame you choose dictates the entire look and feel of your motorcycle. Here’s what you need to consider:

Weld-On Hardtail vs. Full Frame: A weld-on hardtail section is the most popular way to get that classic rigid look by modifying your stock harley sportster frame. A full sportster chopper frame is a complete replacement, offering custom geometry like stretch and rake right out of the box.
Know Your Model Year: Sportster frames changed significantly over the years. It's crucial to select the correct frame or hardtail for your specific model, whether it’s an Ironhead, a 4-speed Evo, or a 5-speed sportster 1200 frame.
Rigid Ride vs. Swingarm: A rigid frame or hardtail provides the cleanest, most traditional chopper look. While some search for a sportster swingarm frame, the classic custom path is a rigid frame, which sometimes requires a sprung motorcycle solo seat for comfort.
Complete the Build: Changing your frame's backend requires other parts. You'll need to consider a new motorcycle oil tank, fender, and mounting hardware to complete your custom sportster frame conversion.

Why Choose Lowbrow Custom for Your Sportster Frame?

We are builders first. We offer only the highest quality frames and hardtails from brands like Gasbox and our own Lowbrow Customs line. Every sportster frame we sell is built in a precision jig for perfect alignment and expertly welded, ensuring a solid and true foundation for your dream build.

When you choose Lowbrow Customs, you're not just buying parts; you're joining a community of builders. We're committed to backing you up with:

Free Shipping on all US orders over $99*
90-Day Hassle-Free Returns because we stand by what we sell.
Real-Deal Tech Support from our experienced team, ready to offer expert advice for your projects.

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Harley Davidson Sportster Motorcycle Frame Chassis FAQ

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